EP1283281A3 - Process for the electrochemical production of chlorine from aqueous chlorhydric acid solutions - Google Patents

Process for the electrochemical production of chlorine from aqueous chlorhydric acid solutions Download PDF

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Publication number
EP1283281A3
EP1283281A3 EP02016239A EP02016239A EP1283281A3 EP 1283281 A3 EP1283281 A3 EP 1283281A3 EP 02016239 A EP02016239 A EP 02016239A EP 02016239 A EP02016239 A EP 02016239A EP 1283281 A3 EP1283281 A3 EP 1283281A3
Authority
EP
European Patent Office
Prior art keywords
chamber
chlorine
aqueous
electrochemical production
anode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02016239A
Other languages
German (de)
French (fr)
Other versions
EP1283281B1 (en
EP1283281A2 (en
Inventor
Andreas Bulan
Fritz Dr. Gestermann
Hans-Dieter Pinter
Gerd Speer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Intellectual Property GmbH
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Bayer AG
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Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP1283281A2 publication Critical patent/EP1283281A2/en
Publication of EP1283281A3 publication Critical patent/EP1283281A3/en
Application granted granted Critical
Publication of EP1283281B1 publication Critical patent/EP1283281B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur elektrochemischen Herstellung von Chlor aus wässrigen Lösungen von Chlorwasserstoff in einer Elektrolysezelle, umfassend eine Anodenkammer und eine Kathodenkammer, wobei die Anodenkammer durch eine Kationenaustauschermembran von der Kathodenkammer getrennt ist, die Anodenkammer eine Anode und die Kathodenkammer eine Gasdiffusionskathode enthält, und in die Anodenkammer die wässrige Lösung von Chlorwasserstoff und in die Kathodenkammer ein sauerstoffhaltiges Gas eingeleitet wird, wobei der Sauerstoffdruck in der Kathodenkammer mindestens 1,05 bar beträgt.

Figure 00000001
The invention relates to a process for the electrochemical production of chlorine from aqueous solutions of hydrogen chloride in an electrolytic cell, comprising an anode chamber and a cathode chamber, wherein the anode chamber is separated by a cation exchange membrane from the cathode chamber, the anode chamber an anode and the cathode chamber containing a gas diffusion cathode, and in the anode chamber, the aqueous solution of hydrogen chloride and in the cathode chamber an oxygen-containing gas is introduced, wherein the oxygen pressure in the cathode chamber is at least 1.05 bar.
Figure 00000001
EP02016239A 2001-08-03 2002-07-22 Process for the electrochemical production of chlorine from aqueous hydrochloric acid solutions Expired - Lifetime EP1283281B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10138215 2001-08-03
DE10138215A DE10138215A1 (en) 2001-08-03 2001-08-03 Process for the electrochemical production of chlorine from aqueous solutions of hydrogen chloride

Publications (3)

Publication Number Publication Date
EP1283281A2 EP1283281A2 (en) 2003-02-12
EP1283281A3 true EP1283281A3 (en) 2003-05-28
EP1283281B1 EP1283281B1 (en) 2012-11-14

Family

ID=7694329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02016239A Expired - Lifetime EP1283281B1 (en) 2001-08-03 2002-07-22 Process for the electrochemical production of chlorine from aqueous hydrochloric acid solutions

Country Status (7)

Country Link
US (1) US6790339B2 (en)
EP (1) EP1283281B1 (en)
CN (1) CN1247818C (en)
DE (1) DE10138215A1 (en)
ES (1) ES2397508T3 (en)
HK (1) HK1054575A1 (en)
PT (1) PT1283281E (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002087419A2 (en) 2001-04-27 2002-11-07 Johns Hopkins University Biological pacemaker
DE10152275A1 (en) * 2001-10-23 2003-04-30 Bayer Ag Process for the electrolysis of aqueous solutions of hydrogen chloride
AU2003302453A1 (en) * 2002-11-27 2004-06-18 Asahi Kasei Chemicals Corporation Bipolar zero-gap electrolytic cell
DE10342148A1 (en) 2003-09-12 2005-04-07 Bayer Materialscience Ag Process for the electrolysis of an aqueous solution of hydrogen chloride or alkali chloride
DE102006023261A1 (en) 2006-05-18 2007-11-22 Bayer Materialscience Ag Process for the production of chlorine from hydrogen chloride and oxygen
JP5041769B2 (en) * 2006-09-06 2012-10-03 住友化学株式会社 Startup method
DE102008015901A1 (en) * 2008-03-27 2009-10-01 Bayer Technology Services Gmbh Electrolysis cell for hydrogen chloride electrolysis
CN102395711B (en) 2009-04-16 2014-09-03 氯工程公司 Electrolysis method using two-chamber ion-exchange membrane sodium chloride electrolytic cell equipped with gas diffusion electrode
DE102009023539B4 (en) * 2009-05-30 2012-07-19 Bayer Materialscience Aktiengesellschaft Method and device for the electrolysis of an aqueous solution of hydrogen chloride or alkali chloride in an electrolytic cell
EP2371806B1 (en) 2010-03-30 2017-07-12 Covestro Deutschland AG Method for manufacturing diaryl carbonates and polycarbonates
SG174715A1 (en) 2010-03-30 2011-10-28 Bayer Materialscience Ag Process for preparing diaryl carbonates and polycarbonates
US8562810B2 (en) 2011-07-26 2013-10-22 Ecolab Usa Inc. On site generation of alkalinity boost for ware washing applications
CN103194765A (en) * 2012-01-10 2013-07-10 石福金属兴业株式会社 Sterilizing water generation apparatus
JP6223442B2 (en) * 2012-06-29 2017-11-01 オーストラリアン バイオリファイニング プロプライエタリー リミテッド Method and apparatus for producing or recovering hydrochloric acid from a metal salt solution

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785294A1 (en) * 1996-01-19 1997-07-23 De Nora S.P.A. Improved method for the electrolysis of aqueous solutions of hydrochloric acid
US6149782A (en) * 1999-05-27 2000-11-21 De Nora S.P.A Rhodium electrocatalyst and method of preparation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534796A (en) * 1976-07-05 1978-01-17 Asahi Chem Ind Co Ltd Electrolysis of pressurized alkali halide
US4311568A (en) * 1980-04-02 1982-01-19 General Electric Co. Anode for reducing oxygen generation in the electrolysis of hydrogen chloride
US6135331A (en) * 1999-08-13 2000-10-24 Davis; Richard Maurice Snow ski boot remover

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785294A1 (en) * 1996-01-19 1997-07-23 De Nora S.P.A. Improved method for the electrolysis of aqueous solutions of hydrochloric acid
US6149782A (en) * 1999-05-27 2000-11-21 De Nora S.P.A Rhodium electrocatalyst and method of preparation

Also Published As

Publication number Publication date
CN1405357A (en) 2003-03-26
EP1283281B1 (en) 2012-11-14
HK1054575A1 (en) 2003-12-05
CN1247818C (en) 2006-03-29
EP1283281A2 (en) 2003-02-12
PT1283281E (en) 2013-01-24
US20030024824A1 (en) 2003-02-06
JP2003049290A (en) 2003-02-21
ES2397508T3 (en) 2013-03-07
US6790339B2 (en) 2004-09-14
DE10138215A1 (en) 2003-02-20
JP4251432B2 (en) 2009-04-08

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